Kivy教程之 更改背景颜色(教程含源码)

我们将调整窗口背景颜色。窗口背景（OpenGL 渲染器的“清晰颜色”）是全局Window对象的属性。为了更改它，我们在以下__name__ == 'main’行之后添加此代码main.py：

from kivy.core.window import Window
from kivy.utils import get_color_from_hex

Window.clearcolor = get_color_from_hex('#101216')

实战代码

import kivy
from kivy.app import App
from kivy.lang import Builder
from kivy.core.window import Window
from kivy.utils import get_color_from_hex

#Window.clearcolor = [1, 1, 1, 1]
Window.clearcolor = get_color_from_hex("#ffffff")

kvcode = """
#:import C kivy.utils.get_color_from_hex
<[email protected]>:
    size_hint: .2, .3
    canvas.before:
        Color:
            rgba: C("#22FFAA")
        Rectangle:
            pos: self.pos
            size: self.size
FloatLayout:
    FVerde:
        pos_hint:{"x":.4, "y":.4}
"""



class JanelaApp(App):
    def build(self):
        return Builder.load_string(kvcode)

janela = JanelaApp()
janela.run()